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How to use Inbox Rotation?

Improve deliverability by strategically spreading your sends across multiple inboxes.

Marion Regimbeau avatar
Written by Marion Regimbeau
Updated over 3 weeks ago

Overview

Inbox Rotation is a key feature designed to optimize your email campaigns by distributing sends across multiple inboxes. This approach improves deliverability and reduces the risk of your emails being flagged as spam.

Key benefits

  • Higher deliverability through smart send distribution

  • Lower risk of blacklists, spam flags, and blocks

  • Campaign continuity even if one address runs into issues


What is inbox rotation

Inbox Rotation automatically alternates email sends between multiple addresses from the same domain (or different domains).


Instead of sending everything from a single inbox, La Growth Machine balances sends across several inboxes.

The result: less pressure on each address and a healthier sender reputation.


Why use inbox rotation

Sending all your emails from one address comes with real risks:

  • Blacklisting

  • Spam detection

  • Provider limits being exceeded

Inbox Rotation solves this by rotating between multiple addresses, for example:

Each address is used in turn, ensuring better stability and stronger deliverability.


What are the benefits of inbox rotation

  • Improved deliverability: spreading volume lowers spam filtering

  • Reduced provider limits: stay under daily caps imposed by email services

  • Sender diversification: if one inbox is penalized, others keep running


Send better, not more

The goal of Inbox Rotation is not to send more emails, but to send them more intelligently.

At La Growth Machine, we don’t recommend mass emailing—it’s inefficient and often counterproductive. We advocate for:

  • Fine-grained segmentation

  • Targeted, personalized messaging

By focusing on quality over quantity, your emails stay relevant, reach the right audience, and generate more replies.


Why you should avoid maximum limits

Even though Gmail allows around 500 emails per day and Outlook up to 5,000 per day, pushing close to these limits—especially for outreach—often leads to:

  • Immediate spam filtering

  • Lower deliverability

  • Long-term damage to sender reputation

  • Temporary blocks

  • Sending suspensions

Important: bulk sender rules typically require:

  • Proper authentication

  • Low complaint rates

  • An unsubscribe link

  • “Human-like” sending behavior

Bottom line: less = better for cold email.


How inbox rotation works

Step-by-step guide

  1. Add your email addresses
    Add the inboxes you want to use in the Email settings section of your account.

  2. Set up your campaign
    Configure your campaign and select which email addresses to include in the rotation.

  3. Automated rotation
    La Growth Machine’s algorithms automatically distribute sends across your inboxes—no manual setup needed.

  4. Continuous optimization
    Monitor campaign performance and adjust your strategy to maintain a strong sender reputation.


Why reputation and best practices still matter

Email providers (Google, Outlook, Yahoo…) analyze much more than send volume:

  • Authentication: SPF, DKIM, DMARC

  • Engagement: opens, clicks, replies

  • Spam signals: complaints, bounces, reports

  • Sending patterns: sudden spikes, irregular volumes, large batches

If you send aggressively from a new domain or inbox, your reputation can drop fast—and affect all future sends.


Best practices to stay safe and avoid spam

  • Use a custom domain, not a free @gmail.com or @outlook.com

  • Correctly configure SPF, DKIM, and DMARC

  • Spread sends throughout the day, avoid bursts

  • Personalize your emails (variables, spins, unique lines)

  • Segment your audience and avoid 100% identical messages

  • Warm up new domains and inboxes gradually

  • On Outlook, monitor the ratio of new vs known contacts

  • Track closely spam complaints, bounces, unsubscribes, and engagement


FAQs

Who can access inbox rotation?

  • Pro plan: up to 5 email addresses

  • Ultimate plan: up to 10 email addresses

Do I need to manually configure the rotation?

No. Inbox Rotation is fully automated by La Growth Machine.

Why and how should I configure DNS certificates?

Because SPF, DKIM, and DMARC are essential for good deliverability and spam prevention.

What types of email addresses can I use?

You can use multiple professional email addresses linked to one or more domains you control.

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